We saw how Obi-Wan and Vader totally transformed in fighting skill from ROTS to ANH, which is to say they really sucked compared to their former selves. But what about Sidious and Yoda, we see neither of them so much as even touch an ignited saber, so do you think that they could still fight like they could have in the PT. Both seem very crippled, and very fragile...

I would assume Yoda still had a Lightsaber, but he clearly would have no need for one, he probably hung it up when he put himself into exile. But, there is the case that during his duel in ROTS, he lost his Lightsaber, and then he immediately went into Exile, doesn't seem like he even had time to create a new Lightsaber.

My theory; he doesn't have his anymore.

As for Palpatine, he lost his Lightsaber too, and once he controlled the galaxy, I doubt he cared to go make another, he lost two in one film, the guy may have a stack of 'em for whenever he needs them.

Here are some ideas, just to throw them out there. Palpatine never needed a lightsaber in ROTJ. By the time he had to "fight" Luke himself, Luke had already thrown his own saber away, and was basically defenseless. Let's say for the sake of argument that Palpatine had a saber hidden in his robes or somewhere else in the throne room. He didn't need to use it, because shocking Luke with lightning was clearly a more painful method of killing him than slicing him up with a lightsaber.

Or Palpatine could go for complete gross factor and pull a Lightsaber out of his butt, Luke would poke out his eyes if he saw that.

I think he took a lesson from Panda Bear or Padmaboo or whatever her name was and kept it hidden in the arm of his chair in case of emergency. Granted, he had a throne pretty much every place he ever went, so he must have had about a thousand of them stashed all around the galaxy. I agree that he doesn't exactly need one, though.

He may have had a lot of time, but Dagobah doesn't have much in the way of supplies to make a saber. Unless Yoda went on ebay and had the parts delivered to Dagobah.

He also lost his cane and cloak, but just a few hours later we see him with a new cane and a new cloak. I have no doubts that Yoda could have stopped by the Jedi Temple with Bail Organa to pick up a few things, including an extra lightsaber, or the materials needed to make one.

Yoda had just been in a major duel with Sidious AND lost, he had already been at the Temple once, it would have been suicide to return, especialy after Sidious knew he was alive and there. Who's to say Bail didn't have stuff on the Tantive IV, Yoda was already on the ship in the first place.

One way or the other, Yoda didn't have the tech to create a new Lightsaber on Dagobah.

Yeah, because those caves carry a crystal, and the Padawans already have the rest of the tech to create the hilt. This is entirely different. Yoda is on a swamp world, which has next to no relation with the Jedi, Yoda obviously didn't have any of the tools or gear to create a Lightsaber.

Yoda had just been in a major duel with Sidious AND lost, he had already been at the Temple once, it would have been suicide to return, especialy after Sidious knew he was alive and there. Who's to say Bail didn't have stuff on the Tantive IV, Yoda was already on the ship in the first place.

One way or the other, Yoda didn't have the tech to create a new Lightsaber on Dagobah.

Bail just happened to have a miniature robe and a cane on Tantive IV? I doubt it. If Yoda could break into the Temple once, he could do it again.

Yes, but was Yoda or was he not already on the ship in the first place, plus it's a Jedi robe, those things seem to be everywhere, no matter where you lose them. Going back to the temple for a robe seems silly.